Shock-absorber.



E. W. BAUM.

SHOCK ABSORBER.

APPLICATION FILED NOV. 9, 19m.

1,1 30,055. Patented M21112, 1915.

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I Inventor,-

THE NORRIS r K co PHOTOVLITHOU \VASH/NG mNv D k EDWIN W. BAUM, OF NOKOMIS, ILLINOIS.

SHOCK-ABSORBER.

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Specification of Letters Patent.

Patented Mar. 2, 1915.

Application filed November 9, 1914. Serial No. 871,432.

To all whom it may concern:

Be it known that I, EDWIN W. BAUM, a citizen of the United States of America, and resident of Nokomis,county of Montgomery, and State of Illinois, have invented certain new and useful Improvements in Shock-Absorbers, of which the following is a specification.

This invention relates to improvements in shock-absorbers, and more particularly to a device for stopping and holding mine cars on mine cages, one of the objects being to provide an improved car stop device, having a yielding resistance exerted through a limited movement to assist in absorbing the momentum and bring the car to a stop without sudden shock or jar.

Another object is to'provide a shock-absorber which when mounted and attached to cage, allows the free movement of the dog or keep, to permit the passing of the car when desired.

With these and other objects in view, this invention consists in the particular construction, arrangement and combination of parts hereinafter described and shown in the drawing.

This improvement is particularly adapted for use on coal mine cages or mine cages of any kind.

Referring to said drawing in which like reference characters distinguish like parts throughout the several views, Figure 1 is an elevation showing the practical application of my invention. Fig. 2 is a plan view of my improved mechanism. Fig. 3 is a sectional view on the line X-X of Fig. 2.

In the practical embodiment of my inven tion I provide two stationary bearings of angle bar formation, D, bolted or otherwise fastened to cage platform, as shown in Fig. 1, so arranged with slotted holes, F, in one end of each, or both ends of each, as to permit the use of either one or two shock-absorbers on each cage.

Located between vertical members of bars, D, as shown in Fig. 2 are the movable portions of the device, said portions comprising a yoke, 13, which is U-shaped on one end and round on the other, and constructed so as to have a collar or shoulder. 13*, and pivotally mounted on pin or rod, H, between ends, B of yoke, B. is keep 1 arranged to swing in a vertical plane. Keep 1 and yoke, 13, are held in position between bars, D, by rod or pin, H, which passes through slotted holes,

F, in bars, D, round holes in B of yoke, B, and round hole in keep 1 so as to allow longitudinal sliding movement of yoke, 13, and keep 1 when engaged with lug 2, Fig. l on mine car, pin or rod, H, being held in slotted holes in bars, D, by cotter pins and Washers or other fastening means.

Mounted and held solid upon ends, B of yoke, B, by cap screws or other fastening means is a rectangular forging or casting, E, arranged to support as shown in Fig. 3, and make rigid keep 1 when in contact with lug 2, Fig. 1 on mine car.

Located upon the cage platform, arranged so as to be in line with bars or castings, D, is a casting or base plate, A, made to fasten to the cage by bolts or other fastening means, passing through the horizontal members, and a hole through the center of the vertical member, through which the round end of yoke, l3, passes. Interposed between said vertical member of casting, A, and shoulder, 13, of yoke, B, and encircling said round end of yoke, 13, is a coil spring, C, adapted for holding said movable portions in forward position and for relieving or absorbing the shock of forcible contact of a mine car with said movable portions. A reinforcing plate, G, is also shown for bars, D, but it will be understood that the same may be employed or not, as desired.

G is a reinforcing or bushing member and is employed to hold bars, D, parallel with each other when angle bars are used in their construction.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is.

1. In a shock-absorber the combination of two stationary bearings having slotted holes and bearings adapted to be fastened to cage platform, a yoke mounted between bearings constructed so as to form connection with keep by a rod or pin being passed through them and stationary bearings, and arranged so as to permit keep to swing in a vertical plane, a rectangular casting rigidly connected with yoke, an opening on top side of rectangular casting arranged to allow the rear end of keep to rise to allow car to pass off the cage, and said rectangular casting connected to yoke to hold keep rigid while in contact with mine car, a stationary base plate constructed so as to permit rear end of yoke to pass through it, and resistance spring encircling end of yoke and located be tween base plate and shoulder on yoke With sorbing shock of forciblecontact With mine 2.- In a shock-absorber a combination of two stationar bearings having slotted holes in vertical parts adapted: to be fastened to cage platform by horizontal parts, a yoke constructed so as to form connection With keepand' bearings by means of'a rodfor'pin and to allow keep: to swing in a vertical planeb'etween' U-shaped endsof yoke, a rectangular casting connected to yoke constructed so as to, permit keep to rise higher than top of rectangular casting and ar-,

ranged to hold keeprigid When in position to st'opminec'ar, a baseplat'ehaving verti- Copies 01 this: patent maybe obtainedz-for five cents each, by addressing the Commissioner ofPatents,

cal and horizontal members adapted tobe fastened to cage platform by horizontal members, a hole through vertical part to permit end of yoke to pass through, a coil spring encircling end of yoke and interposed between vertical member of base plate] and shoulder on yoke, and holding yoke and'keep in forward position, resisting longitudinal sliding movement of yoke and keep, made possible by slotted holes inbearings, and holes through vertical members of base plate, and absorbing shock of forcible'contact with mine car;

EDWIN W. BAUM. [n s'.]

-Witnesse's i FRED C(BEST, GLEN"GL SPIRES."

Washington D. 6. 

